C 2500 Truck 2WD V8-350 5.7L (1988)
Fuel Supply Line: Description and Operation
Fuel Tank (typical)
FUEL TANK
The fuel tank is located under the rear of the vehicle and is the fuel reservoir. The tank has a vertical baffle installed to prevent fuel slosh. The fuel
pump and fuel level sending unit assembly are mounted in the fuel tank as one assembly. The fuel tank assembly also consists of the fuel filler neck and
filler cap.
Fuel Filler Neck
FUEL FILLER NECK
To help prevent refueling with leaded fuel, the fuel filler neck has a built-in restrictor and deflector. The opening of the restrictor will accept only the
smaller unleaded gasoline nozzle which must be fully inserted to bypass the deflector. Attempted refueling with a leaded fuel nozzle will result in fuel
splashing back out of the filler neck.
FUEL TANK FILLER CAP
The fuel tank filler neck is equipped with a screw type cap. The threaded part of the cap requires several turns counterclockwise to remove. The long
threaded area was designed to allow any remaining fuel tank pressure to escape during the cap removal operation. A ratchet type torque limiting device
prevents over-tightening. To install, turn the cap clockwise until a clicking noise is heard. This signals that the correct torque has been reached and the
cap is fully seated.